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Thread: Mac long tube headers and BBK H pipe problems

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  1. #1
    Senior Member Sqrlnts's Avatar
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    Mac long tube headers and BBK H pipe problems

    Anyone ever tried to mate the two? I have my MAC headers installed (90%) and the BBK H pipe does not look like it wants to mate up to the header flange. I know they won't fall into place but this H pipe is going to take some serious work to fit the headers.

    Anyone else run into this? Do I have to use a MAC H pipe instead?
    Thanks in advance.
    306 stuffed with ARP bolts, C&L elbow, BBK 70mm TB, 24lbs, typhoon w/1"spacer, Al radiator, F cam, Pro Form 1.6 RR, MAC long tubes, offroad H, 40 series Flows, TKO500, Steeda clutch quad, Hurst shifter, King Cobra clutch, 3:73 gears, poly motor mounts, 17" Repop Cobra R's with shit tires.

  2. #2
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    MAC lt's? if they are the 5spd ones I believe they will bolt to other h/x pipes. if you have the auto version of the lt's they are alot wider and take different mid pipes.

  3. #3
    Senior Member Sqrlnts's Avatar
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    The headers measure around 13.5 inches center to center at the exhaust flanges and the H pipe measures around 15.5. Something is not right......
    306 stuffed with ARP bolts, C&L elbow, BBK 70mm TB, 24lbs, typhoon w/1"spacer, Al radiator, F cam, Pro Form 1.6 RR, MAC long tubes, offroad H, 40 series Flows, TKO500, Steeda clutch quad, Hurst shifter, King Cobra clutch, 3:73 gears, poly motor mounts, 17" Repop Cobra R's with shit tires.

  4. #4
    Senior Member 93mustank's Avatar
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    Will not work.....vis verse also.....get matching brand h pipe.

  5. #5
    Senior Member Sqrlnts's Avatar
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    I figured as much. I think I am going to shitcan the MAC headers and go with BBK. These damn things are hanging down sooooo low, its not gonna be fun to drive. So, I will be starting from ground zero next weekend........neat.
    306 stuffed with ARP bolts, C&L elbow, BBK 70mm TB, 24lbs, typhoon w/1"spacer, Al radiator, F cam, Pro Form 1.6 RR, MAC long tubes, offroad H, 40 series Flows, TKO500, Steeda clutch quad, Hurst shifter, King Cobra clutch, 3:73 gears, poly motor mounts, 17" Repop Cobra R's with shit tires.

  6. #6
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    Dude stick with the macs, I just got mine back from the shop today it has MAC LT's, Bassani X, and flowmaster 40s, it sounds awesome, trust me i had to do shit tons of work to get mine on, reroute tranny lines, ac lines, but trust m it was well worth it. just my opinion

  7. #7
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    I loved my MAC LT's , that with a mac off road h ( which are pretty cheap ) and flow master 40's dumped was awsome.

  8. #8
    Senior Member ttocs's Avatar
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    some taaaall speed bumps at the work parking lot.... And they are still small compaired to some around here.

  9. #9
    Senior Member Sqrlnts's Avatar
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    yeah, but were your cars lowered? mine is sitting on Eibach Pro springs, about an inch and a half drop. Wish I had my camera to post pics...... Here is a pic exactly like mine. Damn collector is huge. It measures a full 3".......

    I might try and pick up a pro chamber, but am very skeptical about the ground clearance.......

    Thanks for the inputs....
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    306 stuffed with ARP bolts, C&L elbow, BBK 70mm TB, 24lbs, typhoon w/1"spacer, Al radiator, F cam, Pro Form 1.6 RR, MAC long tubes, offroad H, 40 series Flows, TKO500, Steeda clutch quad, Hurst shifter, King Cobra clutch, 3:73 gears, poly motor mounts, 17" Repop Cobra R's with shit tires.

  10. #10
    Junior Member dkwegner's Avatar
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    mac to bbk

    I had taken mine to a muffler shop on Cave Creek and they reangled the ends of the BBK cat H-pipe to fit the mac headers.If you want to know the name of the shop I will get it for you, it cost me one hundred dollars to change.

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